| Booth airflow | Designed airflow rate, air-velocity readings at specified measurement points, airflow direction, and the booth’s operating configuration. | Request the technical specification and a measurement report identifying the test method, measurement locations, and operating conditions. | Compare figures only when booth dimensions, extraction arrangement, and operating conditions are comparable. Confirm that the proposed design suits the coating process and applicable local requirements. |
| Airflow monitoring | Monitoring devices, alarm functions, interlocks, and the method for detecting a loss of extraction or abnormal airflow. | Review the control-system description and request a witnessed functional test during commissioning. | Check that alarms and interlocks are clearly described, included in the quotation, and documented in the operating instructions. |
| Powder recovery | Recovery-system type, rated processing capacity, filter arrangement, cleaning method, and provisions for collected powder handling. | Request equipment specifications, process diagrams, maintenance instructions, and a demonstration using the proposed system configuration. | Assess recovery performance under the intended powder, production rate, and color-change requirements; do not compare recovery claims without matching test conditions. |
| Powder reuse and color change | Powder collection and transfer method, contamination-control measures, and documented procedures for color changes and powder reuse. | Review the operating procedure and ask for a demonstration of the changeover and cleaning process. | Confirm that the proposed workflow meets the buyer’s product-quality requirements and expected changeover frequency. |
| Filtration and maintenance | Filter type and quantity, replacement criteria, cleaning method, maintenance access, and recommended service intervals. | Check the bill of materials, maintenance schedule, filter documentation, and availability of replacement parts. | Compare expected maintenance tasks, consumables, access requirements, and documented service support—not just the initial equipment price. |
| Explosion and fire safety | Risk assessment, protective devices, grounding and bonding provisions, and the safety standards or local codes considered in the design. | Request project-specific safety documentation and have the design reviewed against the regulations applicable at the installation location. | Requirements depend on the site, process, and jurisdiction. Obtain confirmation from a qualified safety professional rather than relying on a general sales statement. |
| ISO 9001:2015 | Certificate number, certified legal entity, certification scope, issuing certification body, and certificate validity dates. | Verify the certificate with the issuing certification body or its official directory. Confirm that the named entity and scope cover the relevant manufacturing activity. | A certificate should be checked for current validity and relevant scope. Do not treat an unverified certificate image or general quality claim as confirmation. |
| Factory and product evidence | Manufacturing location, quality-control records, inspection and test plans, references for comparable installations, and commissioning documentation. | Arrange a factory audit or live inspection where practical; request redacted records and customer references with permission. | Use evidence that can be independently checked. Distinguish equipment manufactured by the supplier from components sourced from other vendors. |
| Warranty and after-sales support | Warranty duration and exclusions, response process, spare-parts availability, remote-support options, and commissioning scope. | Review the written warranty, service terms, parts list, and support commitments before placing an order. | Compare the written commitments and associated costs. Confirm which services are included and which require separate payment. |
| Evidence status | For each supplier, record the submitted document, issue date, verification result, and any outstanding questions. | Use a consistent document checklist and retain the source of each verified claim. | No manufacturer-specific figures or certification claims are listed here. Complete the comparison using current, supplier-provided evidence verified for the exact project configuration. |